Update dependencies

vendor/github.com/google/go-github/AUTHORS

@@ -13,6 +13,7 @@ Abhinav Gupta <mail@abhinavg.net>
 Ahmed Hagy <a.akram93@gmail.com>
 Ainsley Chong <ainsley.chong@gmail.com>
 Akeda Bagus <akeda@x-team.com>
+Akhil Mohan <akhilerm@gmail.com>
 Alec Thomas <alec@swapoff.org>
 Aleks Clark <aleks.clark@gmail.com>
 Alex Bramley <a.bramley@gmail.com>
@@ -38,6 +39,7 @@ Björn Häuser <b.haeuser@rebuy.de>
 Brad Harris <bmharris@gmail.com>
 Brad Moylan <moylan.brad@gmail.com>
 Bradley Falzon <brad@teambrad.net>
+Brandon Cook <phylake@gmail.com>
 Brian Egizi <brian@mojotech.com>
 Bryan Boreham <bryan@weave.works>
 Cami Diez <diezcami@gmail.com>
@@ -70,6 +72,7 @@ Drew Fradette <drew.fradette@gmail.com>
 Eli Uriegas <seemethere101@gmail.com>
 Elliott Beach <elliott2.71828@gmail.com>
 Emerson Wood <emersonwood94@gmail.com>
+eperm <staffordworrell@gmail.com>
 erwinvaneyk <erwinvaneyk@gmail.com>
 Fabrice <fabrice.vaillant@student.ecp.fr>
 Filippo Valsorda <hi@filippo.io>
@@ -78,6 +81,7 @@ Francesc Gil <xescugil@gmail.com>
 Francis <hello@francismakes.com>
 Fredrik Jönsson <fredrik.jonsson@izettle.com>
 Garrett Squire <garrettsquire@gmail.com>
+George Kontridze <george.kontridze@gmail.com>
 Georgy Buranov <gburanov@gmail.com>
 Gnahz <p@oath.pl>
 Google Inc.
@@ -95,15 +99,19 @@ Isao Jonas <isao.jonas@gmail.com>
 isqua <isqua@isqua.ru>
 Jameel Haffejee <RC1140@republiccommandos.co.za>
 Jan Kosecki <jan.kosecki91@gmail.com>
+Javier Campanini <jcampanini@palantir.com>
 Jeremy Morris <jeremylevanmorris@gmail.com>
+Jesse Newland <jesse@jnewland.com>
 Jihoon Chung <j.c@navercorp.com>
 Jimmi Dyson <jimmidyson@gmail.com>
 Joan Saum <joan.saum@epitech.eu>
 Joe Tsai <joetsai@digital-static.net>
 John Barton <jrbarton@gmail.com>
 John Engelman <john.r.engelman@gmail.com>
+JP Phillips <jonphill9@gmail.com>
 jpbelanger-mtl <jp.belanger@gmail.com>
 Juan Basso <jrbasso@gmail.com>
+Julien Garcia Gonzalez <garciagonzalez.julien@gmail.com>
 Julien Rostand <jrostand@users.noreply.github.com>
 Justin Abrahms <justin@abrah.ms>
 Jusung Lee <e.jusunglee@gmail.com>
@@ -123,9 +131,11 @@ Luke Roberts <email@luke-roberts.co.uk>
 Luke Young <luke@hydrantlabs.org>
 Maksim Zhylinski <uzzable@gmail.com>
 Martin-Louis Bright <mlbright@gmail.com>
+Marwan Sulaiman <marwan.sameer@gmail.com>
 Mat Geist <matgeist@gmail.com>
 Matt <alpmatthew@gmail.com>
 Matt Brender <mjbrender@gmail.com>
+Matt Gaunt <matt@gauntface.co.uk>
 Matt Landis <landis.matt@gmail.com>
 Maxime Bury <maxime.bury@gmail.com>
 Michael Spiegel <michael.m.spiegel@gmail.com>
@@ -145,17 +155,20 @@ Parham Alvani <parham.alvani@gmail.com>
 Parker Moore <parkrmoore@gmail.com>
 parkhyukjun89 <park.hyukjun89@gmail.com>
 Pavel Shtanko <pavel.shtanko@gmail.com>
+Pete Wagner <thepwagner@github.com>
 Petr Shevtsov <petr.shevtsov@gmail.com>
 Pierre Carrier <pierre@meteor.com>
 Piotr Zurek <p.zurek@gmail.com>
 Quinn Slack <qslack@qslack.com>
 Rackspace US, Inc.
 Radek Simko <radek.simko@gmail.com>
+Radliński Ignacy <radlinsk@student.agh.edu.pl>
 Rajendra arora <rajendraarora16@yahoo.com>
 RaviTeja Pothana <ravi-teja@live.com>
 rc1140 <jameel@republiccommandos.co.za>
 Red Hat, Inc.
 Rob Figueiredo <robfig@yext.com>
+Rohit Upadhyay <urohit011@gmail.com>
 Ronak Jain <ronakjain@outlook.in>
 Ruben Vereecken <rubenvereecken@gmail.com>
 Ryan Lower <rpjlower@gmail.com>
@@ -176,6 +189,7 @@ Shawn Smith <shawnpsmith@gmail.com>
 sona-tar <sona.zip@gmail.com>
 SoundCloud, Ltd.
 Stian Eikeland <stian@eikeland.se>
+Tasya Aditya Rukmana <tadityar@gmail.com>
 Thomas Bruyelle <thomas.bruyelle@gmail.com>
 Timothée Peignier <timothee.peignier@tryphon.org>
 Trey Tacon <ttacon@gmail.com>
@@ -186,6 +200,7 @@ Victor Vrantchan <vrancean+github@gmail.com>
 Vlad Ungureanu <vladu@palantir.com>
 Will Maier <wcmaier@gmail.com>
 William Bailey <mail@williambailey.org.uk>
+xibz <impactbchang@gmail.com>
 Yann Malet <yann.malet@gmail.com>
 Yannick Utard <yannickutard@gmail.com>
 Yicheng Qin <qycqycqycqycqyc@gmail.com>